Lehigh Valley natives who have become two of the hottest young Hollywood stars will finally get to work together.

Allen High School grad Amanda Seyfried will join former Emmaus High student Dane DeHaan in the cast of the independent film "Young Americans," which stars DeHaan as a young Karl Rove and "Harry Potter's" Daniel Radcliffe as Lee Atwater.

The road-trip buddy film is a reunion of DeHaan and Radcliffe with director John Krokidas. All three worked on 2012's "Kill Your Darlings," a movie about beat generation poets Allen Ginsberg, Jack Kerouac and William Burroughs.

Radcliffe played Ginsberg and DeHaan played Lucien Carr, a Columbia University student who was at the center of the poets' New York City circle. The movie is based on a true story in 1944 when Carr killed David Kammerer, a friend of Burroughs, in Manhattan's Riverside Park.

The script by screenwriter Wes Jones is based on a true story from 1973 that centered around Rove, who runs a dirty political campaign to be the head of the College Republicans, with Atwater as his campaign manager. Their campaign includes a wild road trip through the South intended to drum up support.

MIKE PONT, GETTY IMAGES

Dane DeHaan's break-out role was in the sci-fi hit 'Chronicle' this year.

Dane DeHaan's break-out role was in the sci-fi hit 'Chronicle' this year. (MIKE PONT, GETTY IMAGES)

Seyfried reportedly will play Kate King, a political femme fatale who secretly attempts to beat Rove and Atwater at their own game of dirty tricks and politics. It was previously titled "College Republicans" and then "Young Republicans."

Shooting is scheduled to start in the fall.

DeHaan, the 29-year-old Allentown native who grew up in Zionsville, got his start acting at the former Stage Door Workshop in South Whitehall Township and honed his skills at Allentown's Civic Theatre and at Emmaus High School.

DeHaan didn't graduate from Emmaus. He spent his senior year at the University of North Carolina School of the Arts.

PHOTO GALLERY: Photos of Lehigh Valley celebrities when they were young and photos of them today.

DeHaan's break-out role was in the sci-fi hit "Chronicle" this year. Last year, he played supervillain the Green Goblin in "The Amazing Spider-Man 2."

He also will star as iconic actor James Dean in "Life" with Robert Pattinson of "Twilight."

DeHaan also stars in "Tulip Fever," in which he portrays a 17th century artist who falls for a married woman, played by Swedish actress Alicia Vikander, when he's commissioned to paint her portrait.

Seyfried, also 29, got her start when she landed a recurring role in the soap opera "As The World Turns" at age 15, and went on to star in the 2004 film "Mean Girls." She was a regular on HBO's "Big Love" and starred in movie musicals "Mamma Mia" and "Les Miserables."

Other major roles include romances such as "Dear John" and "Letters to Juliet," thrillers "Gone" and "Red Riding Hood," comedy "The Big Wedding," and the drama "Lovelace."

Next, Seyfried will appear in "Ted 2," a follow-up to Seth MacFarlane's talking Teddy bear movie, "Ted." Seyfried plays a lawyer hired by Ted. It's set for a June 26 release."

Seyfried also plays Mary, the mother to Wendy Darling and her brothers, in the new "Peter Pan" adaptation, "Pan."

The Warner Brothers movie is a prequel to the familiar J.M. Barrie story about a young boy who never grows up and his adventures in the magical Neverland. It's set for an Oct. 9 release.